Viscoelastic-Viscoplastic Modelling of the Scratch Response of PMMA

<table>Comparison of experimental results (<svg height="16.3125" id="M77" style="vertical-align:-3.276pt" version="1.1" viewbox="0 0 47.212502 16.3125" width="47.212502" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> GPa) are those calculated with the elastic-viscoplastic model in using a Young modulus of 3.25 GPa (resp., 3.75 GPa).</table>

Advances in Materials Science and Engineering

Viscoelastic-Viscoplastic Modelling of the Scratch Response of PMMA

Figure 6